Differences in testicula parameters and morhological characteristics of spermatozoa as related to age of West of African dwarf bucks

Oyeyemi, M. O.; Oke, AO; Ajala, OO; Idehen, CO

doi:10.4314/tjas.v5i1.49986

Cited by 12 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the trend of this result for testicular morphometry and placing it side by side with the result of gonadal and extragonadal sperm reserves (Table 2), it would be agreed with Paufler et al (1969) and Oyeyemi et al (2002) that the higher the testicular value (without any abnormality), the higher the capacity of cells during spermatogenesis. Skinner (1975) in his findings also postulated that increase in testicular parameters is followed by a corresponding increase in the sperm production of related animal.…”

Section: Resultssupporting

confidence: 62%

Effect of human menopausal gonadotropin on testicular morphometry, gonadal and extragonadal sperm reserves of rabbit bucks

Ansa

Imasuen

2015

World Rabbit Sci.

View full text Add to dashboard Cite

Testicular morphometry, gonadal and extragonadal sperm reserves of rabbit bucks treated with Human Menopausal Gonadotrophin (Menogon ® ) were studied. Twenty-four crossbred rabbit bucks weighing 1.3-1.6 kg at 15-17 wk were randomised into 4 treatment doses of 0 (control), 7.5, 15.0, and 22.5 I.U. in a completely randomised design with 6 bucks per group. A vial of Menogon ® was reconstituted in 1 mL of physiological saline solution and administered intramuscularly at 72 h intervals for 56 d prior to commencement of sample collection. Parameters evaluated were ejaculate concentration, testicular morphometry, gonadal and extragonadal sperm concentrations. Results for ejaculate concentration (86, 110, 186, and 135×10 6 /mm 3 ) revealed a significantly (P<0.05) higher difference in the 15.0 I.U. group. Gonadal and extragonadal sperm reserve indices were not significantly (P>0.05) affected by the treatment. Testicular morphometry results showed that paired testis volume (cm 3 ), testis circumference (cm), ductus deferens length (cm) and epididymal length (cm) were significantly (P<0.05) different, with a progressive increase that corresponds to increased Menogon ® administration. High and positive correlations (P<0.01) were observed between testis weight and gonadal sperm reserves (r=0.99) and body weight and gonadal sperm reserves (r=0.99). Similarly, correlations between epididymal weight and epididymal sperm reserves (r=0.85), testis weight and ejaculate concentration (r=0.97), body weight and ejaculate concentration (r=0.96), body weight and testis weight (r=0.97), testis volume and ejaculate concentration (r=0.97), testis volume and gonadal sperm reserve (r=0.91), testis volume and testis weight (r=0.96), and testis volume and body weight (r=0.90) were positive and significant (P<0.05). Taking all the reported results into consideration, controlling the amount of Menogon ® administration at 15.0 I.U. for rabbit bucks could be a promising approach to regulating testosterone synthesis and secretion, thereby affording a potential method of enhancing fertility.

show abstract

Section: Resultssupporting

confidence: 62%

Effect of human menopausal gonadotropin on testicular morphometry, gonadal and extragonadal sperm reserves of rabbit bucks

Ansa

Imasuen

2015

World Rabbit Sci.

View full text Add to dashboard Cite

show abstract

“…Morris et al (1999) also stated that within a species of animals, there often exist positive correlation between spermatozoa production, testicular size and testicular length. Some authors (Oyeyemi & Okediran, 2007;Oyeyemi et al, 2002;Britto et al, 2004) have also shown through their reports that testes that are larger in size tend to possess more sperm producing ability than smaller ones. Larger testes weight of bucks fed SC based diet would be said to contain more seminiferous tubules, leydig cells, Sertoli cells, and thus, produce larger amount of sperm.…”

Section: Testicular Morphometric Traitsmentioning

confidence: 99%

“…According to Ewuola (2013), two important factors that guide breeders in selecting breeding males include the quantity of good quality spermatogenic cells with good livability produced by the testis, and its ability to effectively store the produced spermatozoa. Oyeyemi et al (2002) also opined that having adequate information on the morphometric traits of the testis and other reproductive organs of a particular breeding male is a vital pointer to its breeding value and fecundity. This is due to the fact that the spermatozoa-storing ability of the testis of a male animal determines its fertility level.…”

Section: Testicular Morphometric Traitsmentioning

confidence: 99%

Epididymal Sperm Characteristics, Testicular Morphometric Traits and Growth Parameters of Rabbit Bucks Fed Dietary Saccharomyces cerevisiae and/or Zinc Oxide

Emmanuel

Amaka

Okezie

et al. 2019

Braz. J. Poult. Sci.

View full text Add to dashboard Cite

The objectives of this twelve-week feeding trial were to determine the effects of dietary Saccharomyces cerevisiae and/or zinc oxide on epididymal sperm characteristics, testicular morphometric traits, and growth parameters of bucks. 16 (New Zealand White) bucks 16-wk-old, weighing 2.8kg were randomly allotted to one of 4 treatment groups. Each treatment was replicated four times, with 1 buck per replicate, in a completely randomized design (CRD). Each treatment group was randomly assigned to one of the four commercial experimental diets designated thus: T A = control diet with no additives, T B = 0.12g/kg Saccharomyces cerevisiae, T C = 150mg/kg zinc oxide and T D = 0.12g/kg Saccharomyces cerevisiae +150 mg/kg zinc oxide. Although treatment had no effect (p>0.05) on final body weight, average daily weight gain and feed conversion ratio, epididymal sperm characteristics and testicular morphometric traits differed significantly (p<0.05). Bucks on T B (Saccharomyces cerevisiae-based diet) had improved (p<0.05) sperm concentration, motility and live sperm, tubule diameter, epididymal volume, volume fraction of duct, and total duct volume, but decreased testicular volume. Bucks fed T A (control diet) had improved volume fraction of tubule but recorded the highest incidence of head and tail sperm abnormality. Though, T C (zinc oxide-based diet) enhanced (p<0.05) seminal vesicle volume, sperm pH was better among bucks fed T D (Saccharomyces cerevisiae + zinc oxide-based diet). It can be concluded that dietary inclusion of Saccharomyces cerevisiae at 0.12g/ kg of feed improved epididymal sperm characteristics and testicular morphometric traits of rabbit bucks.

show abstract

“…The highest heterosis effect for semen volume was 30.6%, for number of total spermatozoa was 18.2% and for number of viable spermatozoa was 10.4% (Nwakpu & Onu 2007). Sperm output varied with season, including high values in autumn and winter and low ones in spring and summer (Smital et al 2004 (Oyeyemi et al 2002;Oyeyemi and Okediran 2007) as well as utilization intensity (Frangez et al 2005). Mean volume of the sperm rich fraction was 87.30 ml in case of Agonda Goan, whereas this volume was 204.00 ml in case of Large White Yorkshire boar.…”

Section: Resultsmentioning

confidence: 94%

Seminal attributes and sperm morphology of Agonda Goan pigs

Chakurkar

Naik

Barbuddhe

et al. 2015

Journal of Applied Animal Research

View full text Add to dashboard Cite

Study of local breeds and their inclusion in breeding programme is essential owing to their higher disease resistance and adoptability to stresses. Agonda Goan, a local pig breed found in Goa, India, is preferred due to its suitability in acclimatization, less feed requirement and capacity to utilize locally available fibrous feeds. Seminal attributes namely, semen volume, sperm concentrations per millilitre and total sperms per ejaculate and the sperm morphology in Agonda Goan pigs was studied. Average semen volume was 87.31 ml and total sperms per ejaculate were 10.79 × 10 9 which were less as compared to mean semen volume (204.00 ml) and total sperms per ejaculate (111.63 × 10 9 ) in Large White Yorkshire pigs. Mean head area and mean sperm length of the Agonda Goan pig were less than that of sperms of Large White Yorkshire. These observations add to the scientific knowledge as this demonstrates differences in sperm size between boars of different breeds.

show abstract

Differences in testicula parameters and morhological characteristics of spermatozoa as related to age of West of African dwarf bucks

Cited by 12 publications

References 0 publications

Effect of human menopausal gonadotropin on testicular morphometry, gonadal and extragonadal sperm reserves of rabbit bucks

Effect of human menopausal gonadotropin on testicular morphometry, gonadal and extragonadal sperm reserves of rabbit bucks

Epididymal Sperm Characteristics, Testicular Morphometric Traits and Growth Parameters of Rabbit Bucks Fed Dietary Saccharomyces cerevisiae and/or Zinc Oxide

Seminal attributes and sperm morphology of Agonda Goan pigs

Contact Info

Product

Resources

About